Liquid-membrane coupling response of submersible electrostatic acoustic transducer
- 1 March 1989
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 60 (3) , 487-488
- https://doi.org/10.1063/1.1140404
Abstract
A mathematical model of the liquid‐membrane coupling response of the submersible electrostatic acoustic transducer (ESAT) [Rev. Sci. Instrum. 5 0, 31 (1979)] is presented. The model predicts that the ESAT responds to an incident ultrasonic wave of frequency ω and a constant displacement amplitude ξ0 with an output that is proportional to 2ξ0[1+(σω/Z)2]−1/2, where σ is the membrane areal density and Z is the acoustic impedance of the immersion fluid. Measurements taken over the frequency range from 1 to 11 MHz are in good agreement with the model.Keywords
This publication has 2 references indexed in Scilit:
- Ultrasonic spectrum analysis using frequency-tracked gated rf pulsesThe Journal of the Acoustical Society of America, 1980
- Broadband electrostatic acoustic transducer for ultrasonic measurements in liquidsReview of Scientific Instruments, 1979